They are happy to stay home with those who are of no help in the battle, thus, their hearts were sealed and they were left with no understanding.
ये इस बात से ख़ुश हैं कि पीछे रह जाने वालों (औरतों, बच्चों, बीमारो के साथ बैठे) रहें और (गोया) उनके दिल पर मोहर कर दी गई तो ये कुछ नहीं समझतें